org.softamis.cluster4spring.support.invocation
Class LastAccessTimeEndpointSelectionPolicy<E extends Endpoint<SI>,SI extends ServiceMoniker>

java.lang.Object
  org.softamis.cluster4spring.support.invocation.LastAccessTimeEndpointSelectionPolicy<E,SI>

Type Parameters:

SI - type of data used to invoke remote service (such as remote service URL)

E - type of endpoints that could be created by this factory

All Implemented Interfaces:

EndpointSelectionPolicy<E,SI>

public class LastAccessTimeEndpointSelectionPolicy<E extends Endpoint<SI>,SI extends ServiceMoniker>
extends java.lang.Object
implements EndpointSelectionPolicy<E,SI>

Policy that performs selection of endpoint for invocation from the given list of available endpoints. This implementation simply selects the endpoint with minimal last access time.

Author:

Andrew Sazonov

See Also:

Endpoint.getLastAccessTime()

Field Summary

protected static org.apache.commons.logging.Log

fLog

Constructor Summary

LastAccessTimeEndpointSelectionPolicy()

Method Summary

E	selectServiceEndpoint(java.util.List<E> aEndpoints) Selects endpoint for invocation from the given list of endpoints based on value of last access time for every endpoint.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fLog

protected static final org.apache.commons.logging.Log fLog

Constructor Detail

LastAccessTimeEndpointSelectionPolicy

public LastAccessTimeEndpointSelectionPolicy()

Method Detail

selectServiceEndpoint

public E selectServiceEndpoint(java.util.List<E> aEndpoints)
                                             throws org.springframework.remoting.RemoteAccessException

Selects endpoint for invocation from the given list of endpoints based on value of last access time for every endpoint. Endpoint with minimal value is selected.

Specified by:

selectServiceEndpoint in interface EndpointSelectionPolicy<E extends Endpoint<SI>,SI extends ServiceMoniker>

Parameters:

aEndpoints - list of endpoints available for invocation of remote service

Returns:

selected endpoints

Throws:

org.springframework.remoting.RemoteAccessException - throw if some error occured during seleting endpoint for invocation

See Also:

Endpoint.getLastAccessTime()